Deep-well pump head



April 28, 1925.

1,535,414 A. HOLLANER DEEP WELL PUMP HEAD Filed March 27, 1924 2 Sheets-Sheet l 1 N V EN T 0R. ail JAVA/M610 ATTORNEY.

IN V EN TOR;

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Patented Apr. 28, 1925.

UNITED STATES rarest caries.

ALADAR HOLLANDEB, @F BERKELEY, CALIFORNIA.

DEEP-WELL rciar asap.

Application filed March 27, 1924- i aez'ial No. 702,239.

' specification.

" My invention consists in structural improvements in the head of a deep well pump, whereby the bearing by which the weight of the rotating elements of the ump are supported'is cooled by the water ischarged from the pump, and wherein means is introduced to prevent water gaining access with 1n the bearing andpump head, thus enabling proper lubrication and operating conditions to be secured and most efficient operation maintained at all times.

()ther objects will appear from the drawlugs and specifications which follow.

jnected electric motor.

the bearing carrying the weight and thrust It is customary to construct vertical shalt deep well pumps with a column through which the water discharges, and through substantially the center of which column an: operating shaft extends from the top to approximately the bottom out the well. The operating shaft is sometimes enclosed in an inner tube to prevent access of water to the rotating shaft and to support the bearings for the shaft, and to thus provide 'a lubricating means to the bearings and shaft. The lubricant being furnished through or into the inner tube and thus into the bearings while 'thewater discharging from the pump impeller at the bottom of the well passes freely through the passage formed between the column and the inner tube. In other cases the inner tube is omitted and the vertical shaft is carried through water lubricated hearings; or other bearings and lubricating devices may be employed to suit individual requirements.

The weight of the vertical rotating element and any other axial thrusts are can ried by bearings usually mounted at the top of the well or in the head, as it is generally called in the art. The shaft being driven.

either by pulley and belt or gearing, or in the most improved practice, by direct con- In all of such cases in the head must be kept free from-water, although water under the dischargi pressure is in contact with the shaft )0 the head chamber. in caseswhere v tube is not used, and is in close contact with the inner tube up to the head where the inner tube is used. In both cases water leakage into the head readily injures the hearings or electrical connections or both.

My invention prevents this.

By referring to the accompanyingdrawlugs and specifications my invention will be made clear. I

Fig. 1 is a cross section through the head of a deep well pump having an "exposed driving shaft, and to which my invention has been applied.

Fig. 2 is a detailed showing of the type of gland and drain pocket of Fig. 1, showing my invention applied to a similar pump but where an inner tube is employed around the shaft.

Throughout the figures similar numerals refer to i'denticalparts.

A conventional pump column is shown by,

the numeral 1. A driving shaft is shown at 2 and a conventional impeller of any type not shown but "well known is to be understood as mounted on the lower extended portion of the shaft 2. Water is discharged in the direction of the arrow 3 through the pump head outlet 4. At 5 is a casing enclosirig an electric motor having a stator 6 and rotor 7. The rotor is keyed at 8 to the sleeve 9 which latter is provided with a thrust hearing at 11 to carry the'weight. This latter bearing is. mounted in intimate relation with the wall 12 on the'lower side of which the discharging water freely flows thus removing any heat generated in the hearing at all times during the operation.

The shaft :2 with its fixed parts and having considerable weight is fixed in driving relation to'the sleeve Qby the key 13 and supported in axial adjustment by the threaded nut at 14. At 16 is a gland, the lower side of which is exposed to the flowing water 3 and preferably having a acking ring at 17 and through which glam? the shaft 2 rotates with close clearance. ht I8 is an annular pocket drained through the passageway 19 to the outside out the pump column and at 20 is a bushing around the shaft having a running lit in the machined portions of the head. It will now be seen that. any

leakage oi? the pressure water 3 between the f gland 16 and the shaft 2 in the direction of the arrow Ql'will be trapped in the pocket 18 and drained through the passageway 19 and discharged. as indicated by the arrow 22, external to the pump head and thereby preventing any water from getting into the interior 23 of the motor and bearing shell or housing 5. The motor is energized by the leads 2%, 25 passing through the inverted conduit 26, The motor and casing and sleeve features and their connecting parts as above described form the subject of a separate application and are not claimed herein.

Where an inner tube is employed inclosing the shaft 31 as shown at 30, I carry the said inner tube through the gland 32 and to above the pocket 34 and into the rigid portions of the head while providing a pocket 34:, and at 35 a detector passage similar to 18, 19 whereby any Water leakagewvhich may find its W213 between the gland 32 and tube 30 from the pump discharge as shown by the arrow 36 is trapped in the pocket 34 and drained through the passage 5 as before.

ween e lhe discharging water cools the bearings within the casing by its contact and consequent removal of heat, from the surfaces of the casing as at 37.

I claim:

In a head for deepwell vertical shaft pumps having an inner tube extending therefrom and enclosing said shaft, a discharge throat, a bearing for said shaft in metallic contact with said throat, gland means around said inner tube and Within said throat to prevent leakage into said bearing, a pocket outside the inner tube between the said gland means and the said bearing and a dis charge passage from the said pocket to the exterior of the head, said inner tube telescoping with the stationary parts of said head between the pocketand the bearing substantially as and for the purpose set forth.

ALADAR HOLLANDER. 

